This online speech bank is an index to and database of 5000+ full text, audio and video versions of public speeches, sermons, legal proceedings, lectures, debates, interviews and other recorded media events.
The TED (Technology, Entertainment, Design) conference aims to bring together the world's most fascinating thinkers and doers, who are challenged to give the talk of their lives (in 18 minutes). This site makes the best talks from TED publicly available.
University of Hawai'i Maui Community College Speech Department presents information on 10 steps of preparation. Other pages on this site cover speech research, speech practice and speaking tips.